Do you realize Fischer almost never has any bad pieces? He exchanges them, and the bad pieces remain with his opponents.
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[Event "rated untimed match"]
[Site "?"]
[Date "1924.??.??"]
[Round "?"]
[White "Mandler"]
[Black "Koenig"]
[Result "1-0"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "8/8/5P1k/8/2K5/pr2r3/4R3/2R5 w - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1. f7 Kg7 2. f8=Q+ Kxf8 3. Rf1+ Kg7 ( { Black can try: } 3... Rf3 4. Ref2 Rxf2 5. Rxf2+ Ke7 6. Kxb3 { White wins with a large material advantage. } ) 4. Rg2+ Kh6 5. Rh1+ Rh3 6. Rgh2 Rxh2 7. Rxh2+ Kg5 8. Kxb3 { White wins with a large
material advantage. } 1-0